ANC02LA030

NTSB accident investigation · Aeronca 15AC · Sitka, AK · April 14, 2002

Accident · No injuriesLimited investigationFinal report
Date
April 14, 2002, 06:40 local (14:40 UTC)
Place
Sitka, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N1272HAeronca 15AC
Weather
Visual (VMC) · Day
Status
Completed · report January 16, 2003
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-JNU FSDO 05
FAA report
20020414009579A
Case key
54509

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

A loss of engine power during cruise flight for an undertermined reason. A factor in the accident was rough/uneven beach terrain at the site of the forced landing.

Analysis

The commercial certificated pilot departed on a cross-country personal flight, and was in cruise flight about 4,000 feet msl. The engine suddenly began to lose power, and then quit. The pilot declared an emergency, and made a forced landing on a beach. During the landing roll, the airplane struck a small rise along the beach, and then nosed over. The airplane received damage to the wings and fuselage. Postaccident examination of the engine failed to disclose any mechanical malfunction.

Factual narrative

On April 14, 2002, about 0640 Alaska daylight time, a tundra tire-equipped Aeronca 15AC airplane, N1272H, sustained substantial damage during a forced landing on a remote beach, about 10 miles north-northwest of Sitka, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight when the accident occurred. The airplane was operated by the pilot. The commercial certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. A VFR flight plan was filed. The flight originated at the Sitka Rocky Gutierrez airport, about 0622.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on April 14, the pilot reported he departed for Gustavus, Alaska, and was in cruise flight about 4,000 feet msl. The engine suddenly began to lose power, and then quit. He declared an emergency, and made a landing on a beach along the Nakwasina Passage. During the landing roll, the airplane struck a small rise and nosed over. The airplane received damage to the wings and fuselage.

The closest official weather observation station is Sitka, Alaska. At 0640, an Aviation Routine Weather Report (METAR) was reporting in part: Wind, calm; visibility, 10 statute miles; clouds and sky condition, clear; temperature, 36 degrees F; dew point, 33 degrees F; altimeter, 29.42 inHg.

On June 24, 2002, an FAA airworthiness inspector from the Juneau Flight Standards District Office (FSDO) examined the airplane in Sitka, after it was recovered from the accident scene. The inspector reported that the engine carburetor controls (throttle, mixture, and carburetor heat) were attached and operated properly. The carburetor contained fuel without any presence of water. The engine was subsequently started and it produced power. Both engine magnetos operated properly. The engine produced oil pressure and normal oil temperature. The carburetor heat control operated properly.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine powerCruise - normal
Reason for occurrence undeterminedCause
Forced landingEmergency descent/landing
On ground/water encounter with terrain/waterEmergency descent/landing
Terrain condition - sand bar
Terrain condition - rough/unevenFactor
Nose overLanding - roll

Aircraft

Registration
N1272H
Reported as
Aeronca 15AC
Category
Airplane
Serial number
15AC-286
Airframe hours
1,142
Engine
Continental C-145, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
James L. Marrs
Registered owner
Carl M. Gonder Jr.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 31, 2001
Departed
PASI · Sitka, AK
Destination
PAGS · Gustavus, AK
Flight plan
VFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
43
Injuries
None
Certificates
Commercial, Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Expired
Seat
Left
Flight hours
420 total · 120 in this make and model · 400 as pilot in command · 0 in the last 90 days · 0 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
36 °F, dew point 34 °F
Altimeter
29.42 inHg
Observed at
PASI, 10 nm away

Docket · 1

The files NTSB released with the investigation on November 7, 2002, on NTSB’s docket system: statements, records, photos and specialists’ reports. 638 KB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.